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Roudgarmi, P. (2024). Using remote sensing systems to monitor land cover/use changes in Tehran Province. , 12(1), 17-28. doi: 10.22092/lmj.2024.364353.348
Pezhman Roudgarmi. "Using remote sensing systems to monitor land cover/use changes in Tehran Province". , 12, 1, 2024, 17-28. doi: 10.22092/lmj.2024.364353.348
Roudgarmi, P. (2024). 'Using remote sensing systems to monitor land cover/use changes in Tehran Province', , 12(1), pp. 17-28. doi: 10.22092/lmj.2024.364353.348
Roudgarmi, P. Using remote sensing systems to monitor land cover/use changes in Tehran Province. , 2024; 12(1): 17-28. doi: 10.22092/lmj.2024.364353.348

Using remote sensing systems to monitor land cover/use changes in Tehran Province

مدیریت اراضی
Article 3, Volume 12, Issue 1, September 2024, Pages 17-28    PDF (1.06 M)
Document Type: Research
DOI: 10.22092/lmj.2024.364353.348
Author
Pezhman Roudgarmi*
Watershed Management and Water and Soil Productivity Research Department, Tehran Research and Education Center of Agriculture and Natural Resources, AREEO, Iran.
Abstract
Identification of changes in land use and vegetative cover serves important functions not only for optimal management of natural resources but also for planning by the agricultural sector. Satellite imaging is a technique of special benefits for updating land use and cover maps. It was the objective of the current article to exploit satellite data to determine the extent and types of land cover/use changes in Tehran Province over the past two decades. For this purpose, use was made of Landsat-7 satellite images of Tehran Province prepared in the year 2000 and the Sentinel-2 satellite images of 2021. The images along with the relevant remote sensing data were subsequently subjected to processes in the spatial analysis software. Using the data thus obtained, the areas of natural resources and agricultural lands were estimated to be 1,050,155 and 174,115 hectares, respectively, in the year 2000 while those in 2021 were estimated at 946,200 and 170,800 ha. Clearly, the area of natural resources in the province shrank by 103,955 ha during the period from 2000 to 2021 and a total reduction of 3315 ha was recorded for the agricultural land area in the province during the same period. . Moreover, a land use change of about 39000 hectares was observed in agricultural land area in favor of built-up area. This is because about 36000 ha of the natural resources area in the province was changed to agricultural use so as to partially compensate for the farmland area occupied by new settlements, resulting in the total built-up land area in the province to rise to 107,129 ha. A number of suggestions have been put forth for preserving agricultural and natural resources lands in this province, the most promising ones include deployment of a monitoring land use system with remote sensing capabilities and stringent regulations to ban further divisions of Tehran Province into smaller administrative units.
Keywords
Agriculture; Vegetation; Satellite; Landsat; Sentinel-2
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